Malquin N, Rahgoshay K, Lensen N, Chaume G, Miclet E, Brigaud T. CF
2H as a hydrogen bond donor group for the fine tuning of peptide bond geometry with difluoromethylated pseudoprolines.
Chem Commun (Camb) 2019;
55:12487-12490. [PMID:
31566647 DOI:
10.1039/c9cc05771d]
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Abstract
CF2H-Pseudoprolines obtained from difluoroacetaldehyde hemiacetal and serine are stable proline surrogates. The consequence of the incorporation of the CF2H group is an important decrease of the trans to cis amide bond isomerization energy and a remarkable stabilisation of the cis conformer by an hydrogen bond.
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